JP3001165B2 - Magnifying observation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to various fields such as medical, academic, and industrial fields, for example, the outer surface of an object to be observed such as human skin, microscopic organisms, or integrated circuits. To be used for observing the surface layer in an enlarged manner, in particular, by merely bringing the object into contact with or close to the surface of the object to be observed, and subjecting the object to be observed to any processing at the position as it is TECHNICAL FIELD The present invention relates to a magnifying observation apparatus that can perform magnified observation without any problem.

[Conventional technology]

Conventionally, a microscope or a loupe has been used as an instrument or device for magnifying observation, but a microscope needs to process an object to be observed and take it to the side of the microscope, while the other loupe is itself required to process the object to be observed. Can be easily observed without performing any processing on the object to be observed, but the light source for illuminating the object to be observed is not provided, and the possible magnification is low.

Against this background, the present applicant has previously developed a magnifying observation apparatus having both the advantages of a microscope with a high magnification and the advantage of a microscope with ease (JP-A-1-308527).
No. 1, Japanese Patent Application No. 1-24622 and Japanese Patent Application No. 1-273419).

This magnifying observation apparatus comprises an observation apparatus main body including a display (display means) and a controller (not shown), and an objective tool (barrel and light guide cap described in JP-A-1-308527) 100 shown in FIG. The objective 100 includes an optical system 102 for enlarging an image and an optical fiber 103 for guiding irradiation light for illuminating the observation object M from a light source provided on the observation apparatus main body side. Is provided with a light guide cap (object tip) 105. And this objective tool 1
00 while holding the light guide cap 105 in the object M
The image capturing device 104 (CCD device) built in the objective tool 100 reproduces and observes the image captured by the image pickup device 104 on the display. If it is brought into contact with or close to a predetermined proximity distance, it will be focused automatically, and anyone can easily observe at magnifications of 50 times to several thousand times without any skill or skill. That is.

By the way, in this magnifying observation apparatus, a light source is provided in the controller to obtain more powerful irradiation light, and the irradiation light is guided from the light source to the objective tool by an optical fiber,
Also, a signal processing means interposed between the image sensor and the display is provided in the controller. For this reason, a controller is required in addition to the objective and the display, and accordingly, it is insufficient when the overall size is increased and the easiness is further emphasized.

[Problems to be solved by the invention]

Accordingly, an object of the present invention is to further reduce the size and handling of the magnifying observation apparatus having the above-described basic structure.

[Means for solving the problem]

Such an object is composed of an object and a display means. An image of the object is taken by bringing the tip of the object into contact with or close to the surface of the object, and the image is reproduced on the display means. A magnifying observation apparatus for performing magnified observation of an object by observing the object. The objective tool includes a front block and a rear block that are freely contactable and detachable. A light source for illuminating an object to be observed corresponding to the system is built in, and an image pickup means for capturing an enlarged image from the optical system and a signal processing for processing a signal from the image pickup means and outputting it to a display means are provided in a rear block. This is achieved by a magnifying observation apparatus characterized in that means are incorporated therein.

[Action]

In this magnifying observation apparatus, since the light source and the signal processing means are also built in the objective tool, the controller which was required in the above-mentioned conventional apparatus is not required, and accordingly,
The whole is downsized. In addition, the incorporation of the light source and the signal processing means into the objective means that the light source becomes closer to the object to be observed when viewed from the light source, so that the output of the light source can be smaller, and the light source itself can be significantly reduced. In connection with the fact that it can be miniaturized, and when looking at the signal processing means,
Since the signal processing means is closer to the imaging means, the capacity of the signal processing means can be much smaller than in the conventional case, which leads to a much smaller signal processing means. In other words, the incorporation of the light source and the signal processing means into the objective tool leads to the miniaturization of the light source and the signal processing means, and the organic relation that this miniaturization also enables the incorporation leads to the overall miniaturization. It is.

In addition, this magnifying observation apparatus incorporates the light source and the signal processing means in the objective tool, and incorporates the objective tool with the front block containing the optical system and the light source, and the imaging means and the signal processing means. The front block is divided into a rear block and can be freely contacted / separated, so a dedicated front block is prepared in advance according to the magnification and the type of the target object to be observed. Can be handled, and handling becomes even easier.

〔Example〕

 Hereinafter, embodiments of the present invention will be described.

This magnifying observation apparatus includes an objective 1 as shown in FIG.
And display means (not shown) such as a CRT for reproducing and displaying an enlarged image of the observation object M obtained by the objective 1.

The objective tool 1 has a long and slender cylindrical shape and is divided into a front block 3 and a rear block 4 so that the front block 3 can be attached to and detached from the rear block 4.

The front block 3 has an object tip 5 at its tip, and has an optical system 6 for enlarging the object and a light source 7 for illuminating the object inside. The objective tip 5 has a hemispherical shape, and a through hole 8 for irradiating light from the light source 7 to the object M while taking in image light from the object M is formed at the tip. And is screwed to the front block 3. The optical system 6 is configured by holding an objective lens 11 and other lenses in a cylindrical holder 10, and has a tapered shading eave at the tip of the holder 10.
There are twelve. The optical system 6 is basically positioned so that the tip of the objective tip 5 abuts on the surface of the object M by focusing on the surface of the object M. By adjusting the screwing state of the distal end portion 5 to the front block 3, non-contact observation is also possible. The light source 7 is disposed in front of the optical system 6, specifically, at a position corresponding to the outside of the light-shielding eave 12 of the holder 10, and the light is blocked by the light-shielding eave 12 and directly enters the optical system 6. It is considered not to be. As shown in FIG. 2, as the light source 7, a large number of small light emitting sources 7b may be arranged in an annular shape, or an annular lamp may be used.

Since such a front block 3 can be attached to and detached from the rear block 4, the optical system 6, the light source 7 and the shape of the objective end portion 5 have special specifications according to the magnification and the type of the object to be observed. It is possible to prepare a plurality of the above-mentioned items in advance, and selectively use the exclusive-use items, thereby enabling easier handling.

The rear block 4 includes an imaging unit (CCD element) 13 for capturing an enlarged image of the observation target M obtained by the optical system 6 and an imaging unit 1
Signal processing means 14 for processing the signal from 3 and outputting it to the display means is built in. In the rear block 4, a fitting tube 15 for connecting the front block 3 is protruded from a front end surface, and a cable 16 connected to display means is led out from a rear end portion. A switch 17 for ON / OFF is provided on the side surface, and a terminal 18 of a lead from this switch 17 faces the front end face, and a terminal 19 of a lead from the light source 7 faces the rear end face of the front block 3. To be connected.

In order to observe the object to be observed M using such a magnifying observation device, the object 1 is brought to the side of the object to be observed M, and if the object to be observed is capable of contact observation, the tip of the object is used. It is only necessary to make the tip of 5 abut on the surface of the observation object M. If non-contact observation is required, the screwing state of the objective distal end portion 5 with respect to the front block 3 is adjusted, and the objective distal end portion 5 is observed away from the object M to be observed.

〔The invention's effect〕

As described above, in the magnifying observation apparatus according to the present invention, since the light source and the signal processing means are also incorporated in the objective, the overall size is reduced and the handling is further facilitated. By dividing the front and rear blocks into two parts and making them freely contactable and separable, it is possible to easily respond to the necessary observations simply by replacing the front block that has been specially designed in advance according to the magnification and the type of the target observation object. Handling is even easier.

[Brief description of the drawings]

FIG. 1 is a schematic side view including a partial cross section of an objective of the magnifying observation apparatus according to the present invention, FIG. 2 is a schematic plan view showing a relation between a tip of the objective and a light source, and FIG. It is a schematic side view of the objective of the observation device. DESCRIPTION OF SYMBOLS 1 ... Object tool 3 ... Front block 4 ... Back block 5 ... Object tip 6 ... Optical system 7 ... Light source 13 ... Imaging means 14 ... Signal processing means

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G02B 21/00 G02B 21/06

Claims (1)

(57) [Claims] An object is constituted by an object and a display means, and an image of the object is taken by bringing an end of the object into contact with or close to the surface of the object, and the image is reproduced on the display means. A magnifying observation apparatus for performing magnified observation of an object to be observed, wherein the objective tool includes a front block and a rear block that are freely contactable and detachable. The front block includes an optical system for enlarging the object to be observed, and the optical system. A corresponding light source for illuminating the object to be observed is built in, and the rear block is provided with imaging means for capturing an enlarged image from the optical system, and signal processing means for processing a signal from the imaging means and outputting the processed signal to the display means. A magnifying observation device characterized by having a built-in.